Candesartan ester tablets have the effects of vasoconstriction and reducing proteinuria, and are mainly used for lowering blood pressure, treating cardiovascular diseases and proteinuria. The drug treats hypertension by antagonizing the vasoconstrictive effect of vasoconstrictor substances, and is suitable for people with renal function damage due to hypertension or concomitant diabetes. The drug can also block the cardiovascular remodeling effect of angiotensin 2, which can reverse left ventricular remodeling, prevent heart failure as well as angina pectoris, and treat chronic heart failure and cardiac hypertrophy caused by hypertension. Candesartan ester tablets can reduce the pressure on the glomeruli, thus reducing the production of proteinuria, and can be used for proteinuria caused by diabetic nephropathy. The drug should start from a small dose and gradually increase the dose, in the process of using the drug should pay attention to monitoring renal function and blood potassium level, serious liver and kidney function impairment is incomplete and prohibited, low blood pressure, severe hyperkalemia, etc. Use with caution, the occurrence of adverse reactions need to stop the drug and promptly go to the hospital for medical treatment.